GS17B
TETRODE
The GS17B tetrode generates and amplifies RF oscillations in the frequency range 1,000 MHz.
GENERAL
Cathode: directly heated, carbonized thoriated tungsten.
Envelope: metalceramic with ring
leads of cathode and grids.
Cooling: forced air.
Height: at most 205 mm.
Diameter: at most 162 mm.
Mass: at most 6.6 kg.
OPERATING ENVIRONMENTAL CONDITIONS  
Vibration loads;  
frequencies, Hz  58 
acceleration, m/s²  39 
Multiple impacts with acceleration, m/s²  118 
Minimum ambient temperature, °C  60 
Relative humidity at +40 °C, %  9598 
BASIC DATA Electrical Parameters 

Filament voltage (AC or DC), V  3.4 
Filament current, A  148172 
Resistance of unheated cathode, 0  about 0.0025 
Anode current (at anode voltage 1 kV, grid 2 voltage 0.6 kV), A, at least  2.5 
Grid 2 current (at anode voltage 1 kV, grid 2 voltage 0.6 kV), A, at most  0.4 
Negative grid 1 cutoff voltage (absolute value) (at anode voltage 5 kV, grid 2 voltage 0.8 kV, anode current 0.1 A), V, at most  170 
Mutual conductance (at anode voltage 2 kV, grid 2 voltage 0.8 kV, anode currents 2 and 4 A), mA/V  55 
Gain coefficient (grid 1 grid 2) (at anode voltage 2 kV, grid 2 voltages 0.8 and 0.6 kV, anode current 2 A)  7.510.5 
Power gain  5 
Oscillator output power, kW, at least  4.6 
Interelectrode capacitance, pF:  
input  5560 
output  2124 
transfer, at most  0.05 
Limit Operating Values  
Filament voltage (AC or DC), V:  
maximum  3.5 
minimum  3.1 
Maximum filament starting current, A  240 
Maximum anode voltage (DC), kV  5.5 
Maximum grid 2 voltage (DC), kV  1 
Maximum instantaneous grid 1 voltage (absolute value), V  500 
Dissipation, W:  
anode  1.0x10^{4} 
grid 2  100 
grid 1  50 
Maximum operating frequency, MHz  960 
Maximum temperature, °C:  
anode  250 
bulb, stem and metaltoceramic seals  150 
Averaged Characteristic Curves:
U_{f} = 3.4V; U_{g2} = 0.8kV;
_____ anode;
_ _ _ grid 2anode;
_ . _ grid 1anode
Averaged Characteristic Curves:
U_{f} = 3.4V; U_{g2} = 1 kV;
_____ anode;
_ _ _ grid 2anode;
_ . _ grid 1anode
Averaged Characteristic Curves:
U_{f} = 3.4V; U_{g2} = 0.8kV;
_____ anodegrid;
_ _ _ grid 2
Averaged Characteristic Curves:
U_{f} = 3.4V; U_{g2} = 1kV;
_____ anodegrid;
_ _ _ grid 2
Averaged Grid 1 Characteristic Curves:
U_{f} = 3.4V; U_{g2} = 0.8kV
Averaged Grid 1 Characteristic Curves:
U_{f} = 3.4V; U_{g2} = 1kV